Daikin ARQ Installation And Maintenance Manual page 31

Figure 48: 4-pin plug MicroTech control wiring diagram
Wiring:
Use twisted shielded pair (Connect Air W221P-2544 or equivalent).
Daisy-chain and tie shield to earth ground at one point only.The polarity of the signal must always be
maintained throughout the network. Always connect + to + and - to -. The shield connection must be
continuous throughout the entire network and must be connected to earth ground at one (and only one) point.
The N2 Bus can use either solid or stranded wires of the following types:
3-wire twisted cable, 2 twisted-pair telephone cable, or two twisted pair with shield.
The wiring is polarity sensitive. The polarity of the signal must always be maintained
throughout the network. Always connect + to + and - to -. The shield connection must
be continuous throughout the entire network and must be connected to earth ground at
one (and only one) point.
Use Belden 8471, NEMA Level 4, or Echelon-approved equivalent wire. Since the L
wiring is polarity insensitive, no polarity must be observed when making connections via the unshielded twisted-pair wiring.
Figure 49: 10-pin plug MicroTech wiring diagram
Unit Ventilator
P6
UVC
Connector
Empty
DO8-NO
DO8-NC
DO5
DO8-Comm
Empty
24VAC+
DO13
TB2 - 24VAC Comm
Factory Wiring
Field Wiring (by Others)
External Device (by Others)
Note: Not all external input options are available for all models.
Figure 50: 12-pin plug MicroTech control wiring diagram
Note: Not all external input options are available for all models.
External Input
Option 1 Device
(by others)
Unoccupied (default)
or Dewpoint Humidity
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Male Connector
Unit Ventilator
Communication Black
Module
Wire
Caps
601A
602A
603A
604A
605A
606A
607A
608A
609A
610A
External Output
Option 1 Device
(by Others)
Pump or Motorized
Valve
Normally Open
Remote Wall Sensor
(Option)
TB1 - 24VAC
24VAC
External Input
External Input
Option 2 Device Option 3 Device
(by others) (by others)
Remote Ventilation Lockout
Shutdown (default) or
Exhaust Interlock
(4-pin)
(4-pin)
Female Connector
Red 1
2
3
GND
W communication
ON ORKS
External Output
External Output
Option 2 Device
Option 3 Device
(by Others)
(by Others)
Fault Indication
Exhaust Fan
Wire
Caps
Shield
GND
5
UTS
4
FC 6
FM
2
SP
3
ST 1
OCC U
R
Shield
Not Used
Not Used
TB1 - 24VAC
31
Optional Building Automation System (BAS)
BACnet L
®
ON
RT+ FTT–10 (B)
RT- FTT–10 (A)
GND
(By others)
Signal
P1 (12-pin)
P1 (12-pin)
Connector Connector
Wall Sleeve
Unit Ventilator
910 H6-8
911
H6-7
902
H6-6
901
H6-5
912
H6 4
909
H6-3
907
H6-1
906 H6-2
896
896
H6-1
907
904 H4-1
H4-2
905
H5-3
H5-4
908 24VAC
W
®
ORKS
(By others)
IM 1083-3